Some developers are seriously considering de-listing their games from online shops when the Unity Runtime Fee kicks off at the start of next year, meaning some titles built on Unity could end up being temporarily — or permanently — unavailable. Here's what developers are saying about the Unity Runtime Fee on social media, and what games could be impacted.
Nope. The engine is part of the game once compiled. So all hosting and bandwidth cost goes to steam/gog/whoever is selling the game.
They are just trying to get more of that sweet viral game money.